Emily and Eleanor have been in Awsperg for the past two days—given two disasters were brewing. The first one would be the invasion of Ambrobates tomorrow, and the second was Elizabeth who was currently pretending to be a pitiful adventurer to get Ethan's sympathy.
Emily, with the help of an artefact which Eleanor built, was keeping an eye on Elizabeth, and the moment Emily realized what the crazed Princess was attempting, she decided to interfere.
Elizabeth tries attacking Richard, so Ethan misunderstands and attacks Richard. Naturally, Richard's maid or Richard himself would retaliate and that would allow Elizabeth to harm Richard.
Emily saw through everything just the moment she saw Elizabeth advancing towards Richard. And despite Eleanor's resistance, she appeared before the others and revealed Elizabeth's identity.
